{"paper":{"title":"Single spin asymmetries in $\\gamma^* \\gamma \\to \\pi \\pi \\pi$ at large Q^2","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"B. Pire, O.V. Teryaev","submitted_at":"2000-07-03T16:15:01Z","abstract_excerpt":"The $\\gamma^* \\gamma \\to \\pi \\pi \\pi$ reaction is analysed in QCD at large photon virtuality Q and small hadronic mass W. Its amplitude factorizes in a $3 \\pi$ generalized distribution amplitude and a hard subprocess $\\gamma^* \\gamma \\to q \\bar q$ or $\\gamma^* \\gamma \\to g g$. The interference of this process with a Brehmsstrahlung process in e e or $e \\gamma$ collisions gives rise to interesting single spin asymmetries, particularly when W is near the $\\omega$ mass."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0007014","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}